In the realm of the good professional wedding photography I've seen, these all fall quite short. This is the peril of taking on the photography job for family/friends without adequate knowledge/prep to deliver professional-quality images they will look back to forever. There are some major technical problems in each of the 5 originally posted. Exposure, light, composition-- some basic areas that are weak. At first look they feel very Uncle-Ben-at-the-wedding-with-his-DSLR-snap-shottish.
The last 2 you've posted are better.
I'll share my thoughts on each, extract what you will. Usually I wouldn't take the time to CC this many photos, but want to take a little time.
There's some nice things going on here. It's underexposed, and busy. The leaf on the right crept into the frame and the woman smiling down at the two is cut off severely. I think you half caught this moment, but it leaves much to be desired. The exchange, which I'm assuming is a handshake, would be more clear from a different angle.
Light is flat. Composition is uneasy with the placement of the persons in frame. Creates some tension. DOF is giving us all the juicy details in the leaves and bushes behind the subjects that we don't care about, and are just distracting.
I like this. Except for the tree coming out his head. Portraiture 101 no-no.
Her expression is somewhat uncomfortable here. Kind of a forced smile. Not always your fault, as some people can be uncomfortable in front of the camera. The roses are also blown, or bordering so, you might try to bring those back down.
Group shots are really difficult. I like your idea here. I like the framing with the low hanging leaves, and the light is nice. But you've got two blinkers, which just kills it. Make sure you shoot a bunch of the same shot when it comes to groups so you can weed out the blinkers.
Probably the best shot of the set. The treatment has rendered a pretty flat photo here, and the crop is pretty tight which might make framing/printing difficult.
